{"id":90342,"date":"2025-06-01T10:26:42","date_gmt":"2025-06-01T10:26:42","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90342"},"modified":"2025-06-01T10:26:42","modified_gmt":"2025-06-01T10:26:42","slug":"which-one-of-the-following-does-not-contain-cooh-group","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/","title":{"rendered":"Which one of the following does NOT contain COOH group ?"},"content":{"rendered":"

Which one of the following does NOT contain COOH group ?<\/p>\n

[amp_mcq option1=”Citric acid” option2=”Lactic acid” option3=”Tartaric acid” option4=”Ascorbic acid” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is D.
\n<\/section>\n
\nThe question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). Citric acid (C\u2086H\u2088O\u2087) contains three -COOH groups. Lactic acid (C\u2083H\u2086O\u2083) contains one -COOH group and one hydroxyl (-OH) group. Tartaric acid (C\u2084H\u2086O\u2086) contains two -COOH groups and two -OH groups. Ascorbic acid (C\u2086H\u2088O\u2086), also known as Vitamin C, is a weak acid, but its acidity primarily arises from enol groups, not carboxylic acid groups. Its structure is based on a lactone ring and does not contain a -COOH functional group.
\n<\/section>\n
\nCitric acid is found in citrus fruits. Lactic acid is produced in muscles during strenuous exercise and found in sour milk. Tartaric acid is found in grapes and tamarinds. Ascorbic acid is a vital nutrient found in fruits and vegetables, essential for various metabolic processes.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following does NOT contain COOH group ? [amp_mcq option1=”Citric acid” option2=”Lactic acid” option3=”Tartaric acid” option4=”Ascorbic acid” correct=”option4″] This question was previously asked in UPSC CAPF – 2019 Download PDFAttempt Online The correct option is D. The question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). … <\/p>\n

Detailed SolutionWhich one of the following does NOT contain COOH group ?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1085],"tags":[1119,1096,1329],"class_list":["post-90342","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1119","tag-chemistry","tag-organic-acid","no-featured-image-padding"],"yoast_head":"\nWhich one of the following does NOT contain COOH group ?<\/title>\n<meta name=\"description\" content=\"The correct option is D. The question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). Citric acid (C\u2086H\u2088O\u2087) contains three -COOH groups. Lactic acid (C\u2083H\u2086O\u2083) contains one -COOH group and one hydroxyl (-OH) group. Tartaric acid (C\u2084H\u2086O\u2086) contains two -COOH groups and two -OH groups. Ascorbic acid (C\u2086H\u2088O\u2086), also known as Vitamin C, is a weak acid, but its acidity primarily arises from enol groups, not carboxylic acid groups. Its structure is based on a lactone ring and does not contain a -COOH functional group.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following does NOT contain COOH group ?\" \/>\n<meta property=\"og:description\" content=\"The correct option is D. The question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). Citric acid (C\u2086H\u2088O\u2087) contains three -COOH groups. Lactic acid (C\u2083H\u2086O\u2083) contains one -COOH group and one hydroxyl (-OH) group. Tartaric acid (C\u2084H\u2086O\u2086) contains two -COOH groups and two -OH groups. Ascorbic acid (C\u2086H\u2088O\u2086), also known as Vitamin C, is a weak acid, but its acidity primarily arises from enol groups, not carboxylic acid groups. Its structure is based on a lactone ring and does not contain a -COOH functional group.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:26:42+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following does NOT contain COOH group ?","description":"The correct option is D. The question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). Citric acid (C\u2086H\u2088O\u2087) contains three -COOH groups. Lactic acid (C\u2083H\u2086O\u2083) contains one -COOH group and one hydroxyl (-OH) group. Tartaric acid (C\u2084H\u2086O\u2086) contains two -COOH groups and two -OH groups. Ascorbic acid (C\u2086H\u2088O\u2086), also known as Vitamin C, is a weak acid, but its acidity primarily arises from enol groups, not carboxylic acid groups. Its structure is based on a lactone ring and does not contain a -COOH functional group.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following does NOT contain COOH group ?","og_description":"The correct option is D. The question asks which of the listed compounds does NOT contain a carboxylic acid group (-COOH). Citric acid (C\u2086H\u2088O\u2087) contains three -COOH groups. Lactic acid (C\u2083H\u2086O\u2083) contains one -COOH group and one hydroxyl (-OH) group. Tartaric acid (C\u2084H\u2086O\u2086) contains two -COOH groups and two -OH groups. Ascorbic acid (C\u2086H\u2088O\u2086), also known as Vitamin C, is a weak acid, but its acidity primarily arises from enol groups, not carboxylic acid groups. Its structure is based on a lactone ring and does not contain a -COOH functional group.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:26:42+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-does-not-contain-cooh-group\/","name":"Which one of the following does NOT contain COOH group ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:26:42+00:00","dateModified":"2025-06-01T10:26:42+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is D. 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